[IMP] orm/all: Make _name or _inherit mandatory

This is a request following the revert of the use of class names
(concerning the python inheritance and typing project)

closes odoo/design-themes#1024

Related: odoo/odoo#189889
Related: odoo/enterprise#75293
Signed-off-by: Raphael Collet <rco@odoo.com>

test_themes/models/ir_http.py

@@ -5,7 +5,7 @@ from odoo.http import request
 
 
 class IrHttp(models.AbstractModel):
-    _inherit = ['ir.http']
+    _inherit = 'ir.http'
 
     @classmethod
     def _pre_dispatch(cls, rule, args):

test_themes/models/website.py

@@ -4,7 +4,7 @@ from odoo import api, models
 
 
 class Website(models.Model):
-    _inherit = ['website']
+    _inherit = 'website'
 
     @api.model
     def get_test_themes_websites_theme_preview(self):